How to prevent a Heartbreak

I
I cant be your everything
Can't give all of my heart away
Destined for a heartache
Heartache

I don't want you think that I
don't want you with me
But I can't have your needs
over mine
you leave
Then I lose my mind

So
You
You can't be my everything
Cause if one day you walk away
I'll suffer from my mistakes
I don't want another heartbreak
Heartbreak